media: MAINTAINERS: Update MAINTAINERS for Renesas DRIF driver

Add Fabrizio castro and remove Ramesh Shanmugasundaram.
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Reviewed-by: Ramesh Shanmugasundaram <rashanmu@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

MAINTAINERS

@@ -11104,7 +11104,7 @@ F:	drivers/media/platform/renesas-ceu.c
 F:	include/media/drv-intf/renesas-ceu.h
 
 MEDIA DRIVERS FOR RENESAS - DRIF
-M:	Ramesh Shanmugasundaram <rashanmu@gmail.com>
+M:	Fabrizio Castro <fabrizio.castro.jz@renesas.com>
 L:	linux-media@vger.kernel.org
 L:	linux-renesas-soc@vger.kernel.org
 S:	Supported